#!/usr/bin/env python3
# -*- coding:utf-8 -*-

'''
a test module
'''

__author__='Zha Yongchun'

import sys

def test():
  args=sys.argv
  if len(args)==1:
       print('Hello,World!')
  if len(args)==2:
      print('Hello,%s!' % args[1])
  else:
      print('Too many arguments!')

if __name__=='__main__':
  test()